JP3077415U - Bean roasting machine - Google Patents

Abstract

(57) [Summary] [Problems to be Solved by the Invention] The present inventor has found that beans such as coffee can be processed in a very short time (a time that can be tolerated by consumers without irritation; for example, 3 to 4 minutes). We worked on the invention of an in-house roasting machine that can be roasted without any problems, and completed this. Therefore, according to the present invention, the roasting device body is formed of a thin metal plate having good thermal conductivity, such as aluminum, on a container, and a hole for taking in and out beans is provided on the upper portion of the container. By having a structure that efficiently transmits heat to the inside of the container,
It was possible to roast in a very short time (about 3 minutes for coffee). Furthermore, by providing a ridge-shaped protrusion parallel to the handle inside the bottom of the container, if the handle is shaken left and right, the beans collide with the protrusion and dance up, and the beans can be turned upside down (rotation) and mixed together. Movement (revolution) occurred at the same time, making it possible to roast evenly.

Description

[Detailed description of the invention] [Industrial applications]

 The present invention relates to a device for self-roasting beans such as coffee in a short time with uniform heating means such as a gas range.

[Prior art]

 Conventionally, as a device for roasting green beans such as coffee at home, etc., at home, there is a so-called roasting device consisting of a bottom surface of a thin metal plate and an upper surface of a wire mesh, and a direct fire roasting device consisting of a rotating container made of wire mesh. There were roasters and ceramic roasters made of ceramics in one container. However, in the above-mentioned roasting, since beans are heated only through the thin sheet metal on the bottom, only the surface of the beans in contact with the bottom is burnt, and it is difficult to roast even the inside of the beans uniformly. Was. For this reason, this type of roaster is suitable for roasting small sesame seeds and the like, but is extremely inconvenient for roasting large beans such as coffee. In addition, the direct fire roaster has a tendency for only the surface to easily burn because the direct heat hits the beans, and in order to avoid this, it is necessary to continue rotating for a long time with an extremely weak fire. There was an inconvenience that it was necessary. On the other hand, the ceramic roaster has the advantage that it is easier to roast even inside the beans compared to the above two types of roasters because the roasting is carried out with the heat stored in the container. Due to the low thermal conductivity, roasting requires a long time (about 20 minutes) and has the disadvantage that only the beans at the bottom are easily burnt, so it has not been widely used. As described above, there has not been an in-house roasting machine that can roast evenly in a short time. Taking coffee as an example, consumers can buy green coffee beans (green beans), roast them at home, drink freshly ground and freshly brewed coffee. There was a situation that it was difficult to realize that it could be enjoyed at a low price even if it was understood.

FIG. 1 shows an embodiment of the present invention. Containers made of thin metal plates have holes at the top for the access of beans. The hole is formed in a funnel shape to facilitate putting in and out of the beans. A metal handle is joined to one side of the container, and a handle with low thermal conductivity, such as wood or plastic, is formed at the end of the handle. Further, a ridge-shaped projection is formed substantially in parallel with the handle from the handle mounting surface to the opposite surface in the center of the bottom inside of the container. These projections are formed at a height of 3 mm to 20 mm, and the shape of the container side surface (the side surface in the direction parallel to the handle) is made round. By shaking the container left and right (in a direction perpendicular to the handle) via the handle, the coffee beans rotate and revolve uniformly, and as a result, are roasted evenly by the effects of these projections and side shapes. FIG. 2 shows another embodiment of the present invention. Two ridge-like projections are formed inside the bottom surface of the container. A plurality of small holes are formed on the side of the container. The holes are smaller in diameter than the coffee beans when the present apparatus is used, for example, as a coffee bean roaster, and the holes have the effect of moderately scenting the coffee and floating around.

[Effect of the invention]

 As described above, the present invention is the first in the present invention to roast coffee and other beans in a very short time (time that consumers do not get irritated; 3 to 4 minutes), evenly roasted by an expert, evenly. Made it possible. In addition, because of its simple structure, it is easy to manufacture and can be supplied at low cost, making it a lightweight, small, and easy-to-use device.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 2 shows another embodiment of the present invention. Metal container
Hole for putting in and out beans made of metal
Holes for putting in and out beans
Handle grip
Grip ridge-shaped protrusion
Ridge-shaped protrusion stoma

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[Procedure amendment]

[Submission date] November 30, 2000 (200.11.
30)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention.

FIG. 2 is another embodiment of the present invention.

[Description of Signs] 1 Metal container 2 Holes for putting in and out beans 3 Handles 4 Handles 5 Ridge-shaped protrusions 6 Metal container 7 Holes for putting out and getting beans 8 Handles 9 Handles 10 Ridge-shaped protrusions 11 Small holes

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

Claims (2)

[Utility model registration claims] 1. A metal container having a hole at the top, a substantially rod-shaped handle joined to a side surface of the container, and one or more ridges provided inside the bottom surface of the container substantially parallel to the handle. Bean roasting machine consisting of lenticular projections. 2. The beans roasting machine according to claim 1, wherein a plurality of small holes are provided on at least one side surface of the container.